Collision induced perturbations on the long-lived fluorescence of pyrazine in S1.

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概要

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• Collision induced intersystem crossing (slow fluorescence quenching and phosphorescence induction) from selected vibronic levels of pyrazine in S<SUB>1</SUB>(nπ<SUP>*</SUP>, B<SUB>3u</SUB>) was investigated. It was found that slow fluorescence quenching rate at the zero point level exceeds the hard sphere collision rate several times and rapidly approaches it as the excitation energy is increased. On the other hand, phosphorescence induction rate was found to be nearly equal to the collision rate and to have little excitation energy dependence. These differences were discussed on the basis of the collision induced relaxation mechanisms.

• 公益社団法人 日本化学会の論文

著者

• Kaya Koji

  Department Of Chemistry Faculty Of Science And Technology Keio University

• Igarashi Hisao

  Department of Chemistry, Faculty of Science, Tohoku University

• Kaya Koji

  Department of Chemistry, Faculty of Science, Tohoku University

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• Collision induced perturbations on the long-lived fluorescence of pyrazine in S1.
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